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80670334 = 240335167
BaseRepresentation
bin1001100111011…
…10111001111110
312121210110220011
410303232321332
5131122422314
612001013434
71666454323
oct463567176
9177713804
1080670334
11415998a8
122302427a
1313936534
14a9dcb4a
1571374c4
hex4ceee7e

80670334 has 4 divisors (see below), whose sum is σ = 121005504. Its totient is φ = 40335166.

The previous prime is 80670319. The next prime is 80670347. The reversal of 80670334 is 43307608.

80670334 = T7332 + T7333 + T7334.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 80670296 and 80670305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20167582 + ... + 20167585.

It is an arithmetic number, because the mean of its divisors is an integer number (30251376).

Almost surely, 280670334 is an apocalyptic number.

80670334 is the 7334-th centered triangular number.

80670334 is a deficient number, since it is larger than the sum of its proper divisors (40335170).

80670334 is a wasteful number, since it uses less digits than its factorization.

80670334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40335169.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 80670334 is about 8981.6665491433. Note that the first 3 decimals coincide. The cubic root of 80670334 is about 432.0870844958.

The spelling of 80670334 in words is "eighty million, six hundred seventy thousand, three hundred thirty-four".

Divisors: 1 2 40335167 80670334